window.onload=function () {
    function Clock() {
        var date = new Date();
        this.year = date.getFullYear();
        this.month = date.getMonth() + 1;
        this.date = date.getDate();
        this.day = new Array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六")[date.getDay()];
        this.hour = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
        this.minute = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
        this.second = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
        this.toString = function() {
            return this.year + "-" + this.month + "-" + this.date + "     " + this.hour + ":" + this.minute + ":" + this.second + "   " + this.day;
        };

        this.toSimpleDate = function() {
            return this.year + "-" + this.month + "-" + this.date;
        };

        this.toDetailDate = function() {
            return this.year + "-" + this.month + "-" + this.date + " " + this.hour + ":" + this.minute + ":" + this.second;
        };

        this.display = function(ele) {
            var clock = new Clock();
            ele.innerHTML = clock.toString();
            window.setTimeout(function() {clock.display(ele);}, 1000);
        };
    }
    var clock = new Clock();
    clock.display(document.getElementById("clock"));
}
